Adjustable chart



Dee. 1,1925. 1,563,786

R. F. @HELPS ADJUSTABLE CHART Filed Dec. 16 1924 /ll l0 f'agl. E

F595 zo 21 Patented Dec. 1, 1925.

UNITED STATI-:s

RSWELL F. PHELPS, OF EAST DEDHAM, MASSACHUSETTS.

ADJUSTABLE CHART.

pplication filed December 1G, 1924.

To all whom t may con-cern.'

Be it known that I, RoswnLL F. Primes, a citizen of the United States ofAnierica, and a resident of East Dedham, in the county of Norfolk, inthe State of Massachusetts, have invented certain new and nsetul1mprovements in Adjustable Charts, of which the following is aspecification.

This invention relates to charts used to indicate varying conditions atdifferent periods of time, and has for its object the production of adevice of this character in which the datum members are adjustable uponsupporting members and may be varied at will While the memberssupporting said datum members may also be adjusted to vary the spacesbet-Ween the same.

These objects are attained by the mechanism illustrated in theaccompanying drawing.

For the purpose of illustrating the invention, one preferred formthereof is illustrated in the drawings, this form having been found togive satisfactory and reliable results although it is to be understoodthat the various instrumentalities of which the invention consists canbe variously arranger and organized and the invention is not limited tothe precise arrangement and organization of these instrumentalities asherein shown and described except as required by the scope of theappended claims.

Of the drawings Figure 1 represents an adjustable graphic chartembodying the principles of the present invention.

Figure 2 represents a vertical section of the same on line 2, 2, onFigure 1.

Figure 3 represents a horizontal section on line 3, 3 on Fig. 1.

Figure 4 represents an elevation of one of the supporting Wires with aball at each end thereof, and

Figure 5 represents one of the datum members used on said Wires, thismember being drawn to an enlarged scale.

Similar characters indicate like parts throughoutthe several figures ofthe drawings.

ln the drawing 10, 10 are two parallel horizontal bars having their endspivotally connected by rivets 11 to the ends of vertical bars 12, '12thus forming a rectangular frame.

One of the vertical bars 12 has mounted thereon a graduated scale 13With suitable Serial No. 756,239.

indicating characters thereon while one of the horizontal bars 10 islikewise provided with a scale 1a having thereon graduations and otherindicating characters.

As shown in the drawing the scale 141 has spaced graduations indicatingdifferent years and the scale 1?) has graduations indicating diiierentamounts, but these graduations and indicating characters may bedifferent from those shown, differently graduated scales being usedaccording to the information it is desired to display upon the chart.

Each bar 10 has a groove 15 formed in its inner face, the inner end ofthe groove being preferably cylindrical throughout its i entire length.

A. plurality of Wires 16 are employed, each Wire having on each end a`ball 17 adapted to be positioned in one of the grooves 15.

TWhen these ball ends 17 are positioned in the grooves 15 they may bemoved endivise of said grooves to cause the Wires 16 to aline with thegraduations on the scale 141.

When the vvires 16 are thus adjusted'they are in parallelism and theball ends 17 lit accurately enough in the grooves 15 to re tain theseWires in adjusted position.

1n connection with the Wires 16 a number of datum members 19 are used,each such member consisting of a ball having a slot 20 extending to itscent-er, said slot 2O being adapted to receive one of the Wires 16.

Preferably the ball is made of material which will yield slightly andthe slot 2O has a Width slightly less than the diameter of the wire 16so that said ball may be snapped upon a Wire and retained in positionthereon.

The members 19 may be moved along the Wires 16 into any desired positionand When so adjusted will remain in the place in Which they arepositioned.

Each member 19 is provided with a thread passage 21 through which ispassed a thread 22 connected at one end to the member 19 on the lefth'and Wire 16, the free end of said thread 22 being Wound around abutton 23 to hold the thread 22 taut.

The bars 10 are provided at the end of the grooves 15 With entranceslots 2:4: extending from said grooves to the front face of said bars,these slots providing means whereby the ball ends 17 may be insertedinto the grooves 15 and removed therefrom.

One of the vertical bars 13 is provided with a stop projection 25 whichcoact-s With the under n'all of the upper bar l0 when the bars are inrectangular position, the connecting rivets ll in the bars l0, l2 beingtight enough to retain said bars 10, 1Q .in such position.

lVhcn the frame is not in use it may be collapsed, the bars l0, l2being' moved about the rivets ll until the upper bar 10 comes intocontact with and rests upon the lower bar 10. In this collapsedcondition the frame will occupy but-very little space.

Vhile only one set of datum men'ibers i9 and one thread 22 is shown inthe drawing, it is obvious that other threads may be used upon vthe sameWires 16 if desired.

Such a device may be used as a graphic chart and changed from day today, or at stated periods, in order to furnish data as to changes vinconditions.

Usually such charts are drawn and consequently quite expensive, muchlabor beA ing entailed in drafting the same.

By the use of the chart herein shown and described all this Work isdispensed with and if there is no further use for the particular dataillustrated by the position of the datum members 19 and thread 22, newscale 13, 14 may be substituted for those shown in the drawingandentirely diii'ereiit data maybe indicated by the chart.

lf a plurality of copies of `the chart are required, the device whenproperly adjusted may be photographed and photographic prints madetherefrom.

It is believed that the operation and many advantages of the inventionWill be Well understood Without further description.

Having thus described my invention, I Claim l. A chart provided With aplurality of 'taut parallel Wires; a taut thread extending transverselyof said Wires.; and a datum member for each Wire having `a slot therein,the Walls of which are adapted to impinge upon said Wire and retain saiddatum member in adjusted position; and means for connecting' said threadto said datum member. i

2. A chart provided with a plurality of taut parallel Wires; a tautthread extending tratarse transversely of said wires; and a datum memberfor each wire .having a slot therein, the Walls of Which are adapted toimpinge upon said Wire and retain said datum member in adjustedposition, said datum members having passages perpcndiculzu' to saidslots through Which said thread is adapted to be inserted.

3. A chart consisting of a rectangular frame, two parallel bars whichare :provided with grooves in their inner faces, la plurality of wireshaving heads on opposite ends thereof positioned in said grooves andmovable vendwise therein; a datum member on each Wire adjustablelengthwise thereof; and a thread connecting all of said datum vmembers.

4. A chart consisting ^of a rectangular frame, two vparallel bars whichare provided With grooves in their inner faces; a plurality of Wireshaving heads on opposite ends thereof positioned in said grooves andmovable rendWi-se therein; .a dat-um member on each Wire -adjustablelengthwise thereof, each member hav-ing' a slot therein to receive saidWire; and -a thread extending transversely Aof said vsupporting meansand connecting all Aof said datum members.

5. A chart consisting of a rectangular f-rai'ne, two .parallel barswhich are provided with grooves in their inner faces; a plurality ofWires having heads on opposite ends thereof 'positioned in said groovesand movable endwise therein; a datum member on each wire adjustablelengthwise thereof each member having a slot ytherein to `receive saidWire and la `thread passage therethrough perpendicular tosaid slot; anda `thread inserted through said passages and connecting all of saiddatum members.

G. A chart consisting vof .a frame.; .a plurality of parallel Wires'thereon adjustable towards and 'from .each other; a detachable datummember adapted to be positioned on each Wire and adjusted lengthwisethereof; and a taut thread extending transversely of said Wires andconnecting' all of said datum members.

Signed by me at 746 Old South Bldg., Boston, Mass., this 13th day `ofDeeen'iber,

ROSELL F. PHIQLPS.

